A convertible towing device for use with a towing vehicle equipped with a trailer connector and a trailer having a tongue with a conventional trailer hitch includes a base section connectable to the trailer and a pivot section pivotable on the base section between a rearward position toward the trailer and a forward position toward the towing vehicle and connectable to the towing vehicle in the forward position. The pivot section is adjustably positionable in pre-selected forward positions and is provided with a connector plate having a king pin for connection to a fifth wheel type connector on the towing vehicle.